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Track water storage, capacity and historical trends for major reservoirs in New South Wales, Victoria, Queensland and beyond.

60.4% National average
303 Dams tracked
87,729 GL Total capacity
19 Jul 2026 Last Updated
Lake King William Water Level

Lake King William Water Level

Tasmania · Upper Derwent
Reviewed by Water Resources Analyst
Hydrological Summary: Lake King William currently stores 74.3% of its total 539 GL capacity. Located in TAS and operated by Hydro Tasmania, it is a critical water source for regional supply and irrigation.
Data officially sourced and updated from Tasmania water authorities. Last dataset update: 2026-07-17 00:00:00
Current Storage Level 74.3%
Total Capacity
539 GL
Status
Normal / Safe
Operator
Hydro Tasmania
Last Updated
17 Jul 2026
Live Weather
10°C Partly cloudy
Rain: 0mm | Hum: 38%

Water Level Analysis

Water levels at Lake King William are well within positive historical averages. At 74.3% capacity, the facility is holding 539 GL of water. The local water grid benefits significantly from this stable storage level.

Catchment & Hydrological Impact

The Off-stream acts as the primary lifeblood for Lake King William, making it a cornerstone of the Tasmania network. Hydrological health in this specific drainage basin is vital for downstream ecosystems. Catchment dynamics in the Tasmania are deeply influenced by the retention capacity of Lake King William.

Agricultural & Economic Significance

Agriculture in the surrounding areas of Tasmania depends heavily on the water security provided by Lake King William. Farmers and agribusinesses monitor these levels closely to plan their seasonal crop yields. Without the buffer provided by this massive 539 GL storage, regional farming would face extreme volatility.

Ecological & Recreational Context

The surrounding catchment of Lake King William also supports diverse local flora and fauna. During periods of healthy water levels, the area often sees an increase in recreational activities such as fishing, boating, and camping. Authorities must constantly balance the need for human water consumption with the ecological necessity of maintaining healthy river systems downstream.

Current Weather & Evaporation Impact

With a mild reading of 10°C today, surface evaporation is significantly reduced, helping to preserve current volume. With 0mm of recent rainfall and partly cloudy skies, the catchment is relatively dry today.

Future Outlook & Monitoring

The Bureau of Meteorology's climate outlooks will play a pivotal role in predicting the future inflows for this catchment. State water authorities utilize highly sophisticated monitoring tools to ensure every drop is accounted for. Resilience against extreme weather events remains the ultimate goal for the managers of this critical infrastructure.

Location Map

Frequently Asked Questions

What is the current water level of Lake King William?
As of the latest official reading, the water level at Lake King William is at 74.3% of its total capacity.
Is Lake King William currently full?
It is partially full, currently holding steady at 74.3%.
What is the maximum water capacity of Lake King William?
When completely full (100%), Lake King William can hold up to 539 Gigalitres (GL) of water.
Where is Lake King William located?
This reservoir is a critical water storage facility located in the state of Tasmania, Australia.
How does the water level at Lake King William affect local agriculture?
Water levels dictate the irrigation allocations for surrounding farmlands. A healthy level of 74.3% ensures that local farmers have the necessary water security for their seasonal crops and livestock.
Who manages the data for Lake King William?
The data is sourced from official government authorities including the Bureau of Meteorology (BOM) and specific state water utilities.

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